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Finding the Fourth Proportional to 303,663.93, 455,772.30 and 161,628.45

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Solution

The fourth proportional to 303,663.93, 455,772.30 and 161,628.45 is: 242,589.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,663.93 : 455,772.30 = 161,628.45 : x
  2. Step 2: Convert to fraction form
    303,663.93/455,772.30 = 161,628.45/x
  3. Step 3: Cross multiply
    303,663.93x = 455,772.30 × 161,628.45
  4. Step 4: Simplify right side
    303,663.93x = 73,665,770,401.94
  5. Step 5: Solve for x
    x = 73,665,770,401.94/303,663.93
  6. Step 6: Final answer
    x = 242,589.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.